package reflect;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.Scanner;

/**
 *
 * 调用方法
 */
public class ReflectDemo4 {
    public static void main(String[] args) throws ClassNotFoundException, IllegalAccessException, InstantiationException, NoSuchMethodException, InvocationTargetException {
        Person p= new Person();

        p.sayHello();


        Scanner scanner=new Scanner(System.in);
        System.out.println("请输入类名");
        String className=scanner.nextLine();
        System.out.println("请输入方法名");
        String methodName=scanner.nextLine();


        //1:实例化
      //  Class cls =Class.forName("reflect.Person");
        Class cls=Class.forName(className);
        Object o=cls.newInstance();

        //2:调用方法

     //   Method method=cls.getMethod("sayHello");
        //invoke用于执行这个方法，要传入该方法所属对象以便进行调用
        Method method=cls.getMethod(methodName);
        method.invoke(o);//p.sayHello()

    }
}
